<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .box{
            position: relative;
            width: 100%;
            /* display: flex;
            flex-wrap: wrap; */
        }
        .title{
            border: 1vw solid black;
            position: relative;
            font-size: 5.3125vw;
            width: 100%;
            height: 13.75vw;
            background-color: #0dc441;
            text-align: center;
            line-height: 13.75vw ;/* 88px -> 13.75vw */
            color: white;
        }
    </style>
</head>
    <body>
        <div class="box">
            <!-- 标题 -->
            <div class="title">
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            </div>
            
        </div>
    </body>
</html>